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学者姓名：庄杰榕
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Abstract ：
In order to further improve the reliability of AC contactor operation, this paper designs a control strategy based on flux linage closed loop. Firstly, a flux linkage observer is designed based on the topology of the full-bridge driving circuit, with bus capacitance voltage and coil current as inputs. Subsequently, a flux linkage closed-loop control strategy is developed. Before making, the coil resistance is automatically identified. During the making process, only a suitable flux linkage reference value needs to be set to realize the automatic flux linkage weakening and contact bounce reduction. During the holding stage, the noise adaptive suppression strategy is adopted, which can better suppress high-frequency noise. In the breaking stage, the magnetic circuit is reversed excited to enhance the ability of breaking the circuit. The control strategy proposed in this paper can effectively improve its control performance, simplify the control difficulty, and is of great significance for the intelligent control of the contactor. © 2024 IEEE.
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| GB/T 7714 | Wang, K. , Tang, L. , Zhuang, J. . High-Performance Flux Linkage Closed-Loop Strategy for AC Contactors [未知]. |
| MLA | Wang, K. 等. "High-Performance Flux Linkage Closed-Loop Strategy for AC Contactors" [未知]. |
| APA | Wang, K. , Tang, L. , Zhuang, J. . High-Performance Flux Linkage Closed-Loop Strategy for AC Contactors [未知]. |
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Abstract ：
The basis of intelligent control of contactor is mostly realized by DC control and high-frequency PWM control. In order to further optimize the control algorithm for problems such as bounce and contact arc, parameter identification of electromagnetic mechanism is essential, and parameter mismatch directly affects the control accuracy of the algorithm. Based on the control rate accelerator CLA (Control Law Accelerator) module of digital signal processor DSP chip TMS320F28069, the parameters of electromagnetic mechanism controlled by intelligent closed-loop control algorithm of contactor are identified in real time, which greatly reduces the calculation burden of the chip under high frequency control. The identification results are output through SPI protocol and DAC module, which verifies the effectiveness of the parameter identification system. © 2024 IEEE.
Keyword ：
Control theory Control theory Digital signal processing Digital signal processing Digital signal processors Digital signal processors Parameter estimation Parameter estimation Pulse width modulation Pulse width modulation
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| GB/T 7714 | Xu, Qing , Zhuang, Jierong , Xu, Zhihong . Parameter Identification Design of Intelligent Contactor Based on DSP-Control Law Accelerator [C] . 2024 : 1930-1934 . |
| MLA | Xu, Qing 等. "Parameter Identification Design of Intelligent Contactor Based on DSP-Control Law Accelerator" . (2024) : 1930-1934 . |
| APA | Xu, Qing , Zhuang, Jierong , Xu, Zhihong . Parameter Identification Design of Intelligent Contactor Based on DSP-Control Law Accelerator . (2024) : 1930-1934 . |
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Abstract ：
With the increasing complexity of power system, higher requirements are put forward for the performance and stability of electromagnetic switch, and PWM high frequency control has become a development trend. Under the PWM high frequency control mode, the proximity effect and skin effect make the current density distribution in the conductor uneven, which increases the winding loss. If it works for a long time, it will lead to the increase of local heating value and reduce the service life of the electromagnetic switch. Based on the actual winding model of electromagnetic switch, this paper applies Dowell algorithm and improved Dowell algorithm to analyze the eddy current effect in winding. Through the algorithm, the relationship between the working frequency of electromagnetic switch, winding thickness, AC resistance and penetration rate is revealed, and the optimal winding thickness at a specific working frequency is deduced. Finally, the actual winding is measured by impedance analyzer, and the calculation errors of analytical algorithm and measured winding are compared. Experiments show that the improved Dowell algorithm has high accuracy in calculating the high-frequency winding loss of electromagnetic switch, which provides reference for the optimal design of electromagnetic switch winding. © 2023 IEEE.
Keyword ：
Electric power distribution Electric power distribution Pulse width modulation Pulse width modulation Winding Winding
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| GB/T 7714 | Zhang, Guoxing , Zhuang, Jierong , Xu, Zhihong . Study on Analytical Calculation Model of Winding Loss of Electromagnetic Switch with High Frequency Control [C] . 2023 : 276-280 . |
| MLA | Zhang, Guoxing 等. "Study on Analytical Calculation Model of Winding Loss of Electromagnetic Switch with High Frequency Control" . (2023) : 276-280 . |
| APA | Zhang, Guoxing , Zhuang, Jierong , Xu, Zhihong . Study on Analytical Calculation Model of Winding Loss of Electromagnetic Switch with High Frequency Control . (2023) : 276-280 . |
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Abstract ：
Dynamic inductance is an important parameter that reflects the dynamic characteristics of the electromagnetic switch during the movement process. Its accurate and rapid identification is of great significance to the optimization and control of the electromagnetic switch. In the actual operation process of electromagnetic switch, the dynamic inductance of electromagnetic mechanism is affected by the coil current and the working air gap, and it changes non-linearly, which makes it difficult to identify. For this reason, this paper proposes a dynamic inductance identification model based on the discrete differential equation. The coil voltage and current are used as input of the model, which considers the online self-correction method of coil resistance. It realizes the identification of dynamic inductance of electromagnetic switch under PWM closed-loop control. At the same time, a three-dimensional finite element co-simulation model of the electromagnetic switch considering the collision bounce is established, and the dynamic inductance is obtained by the method of electromagnetic-mechanical coupling. The calculation results of the inductance identification model are compared with the co-simulation model, and the reliability and accuracy of the identification model are verified. It lays a foundation for further intelligent control of electromagnetic switch. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
Keyword ：
Differential equations Differential equations Dynamics Dynamics Inductance Inductance
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| GB/T 7714 | Meng, Liang , Zhuang, Jierong , Xu, Zhihong . Parameter Identification and Co-simulation Verification of Dynamic Inductance in Electromagnetic Switch [C] . 2022 : 716-723 . |
| MLA | Meng, Liang 等. "Parameter Identification and Co-simulation Verification of Dynamic Inductance in Electromagnetic Switch" . (2022) : 716-723 . |
| APA | Meng, Liang , Zhuang, Jierong , Xu, Zhihong . Parameter Identification and Co-simulation Verification of Dynamic Inductance in Electromagnetic Switch . (2022) : 716-723 . |
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Abstract ：
接触器控制模块充电过程通常由整流滤波环节完成,该环节导致输入电流畸变,给电网带来较为严重的谐波污染,但现有接触器控制方案缺少谐波抑制功能.为此,基于模块化思想研究设计智能接触器的充电与控制模块,充电子模块采用电压外环电流内环策略,可抑制输入电流谐波;同时,控制子模块采用线圈电流滞环策略,实现接触器稳定运行.以CJ20-400A为对象进行实验验证,结果表明,在不同电压下,所设计的模块可改善输入电流畸变,获得较好的功率因数校正和谐波抑制效果.
Keyword ：
充电与控制模块 充电与控制模块 智能接触器 智能接触器 模块化 模块化 谐波抑制 谐波抑制 输入电流畸变 输入电流畸变
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| GB/T 7714 | 陈坚 , 庄杰榕 , 许志红 . 智能接触器充电与控制模块设计 [J]. | 福州大学学报（自然科学版） , 2022 , 50 (6) : 782-788 . |
| MLA | 陈坚 等. "智能接触器充电与控制模块设计" . | 福州大学学报（自然科学版） 50 . 6 (2022) : 782-788 . |
| APA | 陈坚 , 庄杰榕 , 许志红 . 智能接触器充电与控制模块设计 . | 福州大学学报（自然科学版） , 2022 , 50 (6) , 782-788 . |
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Abstract ：
该文针对单一电流闭环控制引起的电磁接触器吸持高频噪音以及无法自适应调节吸持参考电流等问题,提出多变量反馈控制思路:通过分析线圈电流强迫上升现象的约束条件,建立铁心分离反馈变量,改变依赖本体结构、预先设定吸持电流参考的现有控制模式,自动获取接触器当前工况下的临界吸持电流,适应本体参数和工作环境的变化,对接触器智能控制具有普遍意义;引入母线电压前馈变量,以电流反馈为内环推导了闭环占空比的控制规律,验证控制规律的闭环稳定性,有效减小了线圈电流纹波及谐波,抑制铁心振动幅值,降低高频噪音;为实现多变量反馈控制策略,设计一种新型的四工作模态接触器控制拓扑,对去磁回路进行动态组合,在宽电压范围内缩短接触器吸...
Keyword ：
临界电流 临界电流 动态组合 动态组合 多变量反馈 多变量反馈 闭环占空比 闭环占空比 高频噪音 高频噪音
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| GB/T 7714 | 庄杰榕 , 许志红 . 电磁接触器多变量反馈吸持控制策略的研究 [J]. | 中国电机工程学报 , 2019 , 39 (05) : 1516-1526 . |
| MLA | 庄杰榕 等. "电磁接触器多变量反馈吸持控制策略的研究" . | 中国电机工程学报 39 . 05 (2019) : 1516-1526 . |
| APA | 庄杰榕 , 许志红 . 电磁接触器多变量反馈吸持控制策略的研究 . | 中国电机工程学报 , 2019 , 39 (05) , 1516-1526 . |
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Abstract ：
提出一种智能接触器准临界电流自起动控制策略。通过分析电流强迫下跌现象,推导维持电流闭环的约束条件,建立了反映触头运动状态的通用反馈信号,将下降拐点处的线圈电流定义为准临界起动电流;采用模糊观测,为不同容量的接触器首次起动提供电流初值;设计双极性数字电流闭环,基于高动态响应的电流在线搜索,不断逼近当前工况下的起动临界电流,实现吸反力良好配合的自起动过程控制。所提控制策略能够自适应获取准临界起动电流,抑制触头弹跳,对本体参数变化、电压波动不敏感,兼具卡涩故障警报、线圈过流保护等优点;相关仿真及实验验证了控制策略的有效性。
Keyword ：
下降拐点 下降拐点 准临界电流 准临界电流 数字闭环 数字闭环 模糊观测 模糊观测 自起动 自起动
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| GB/T 7714 | 庄杰榕 , 许志红 . 智能接触器准临界电流搜索自起动控制 [J]. | 电机与控制学报 , 2019 , 23 (06) : 73-80 . |
| MLA | 庄杰榕 等. "智能接触器准临界电流搜索自起动控制" . | 电机与控制学报 23 . 06 (2019) : 73-80 . |
| APA | 庄杰榕 , 许志红 . 智能接触器准临界电流搜索自起动控制 . | 电机与控制学报 , 2019 , 23 (06) , 73-80 . |
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Abstract ：
该文针对单一电流闭环控制引起的电磁接触器吸持高频噪音以及无法自适应调节吸持参考电流等问题,提出多变量反馈控制思路:通过分析线圈电流强迫上升现象的约束条件,建立铁心分离反馈变量,改变依赖本体结构、预先设定吸持电流参考的现有控制模式,自动获取接触器当前工况下的临界吸持电流,适应本体参数和工作环境的变化,对接触器智能控制具有普遍意义;引入母线电压前馈变量,以电流反馈为内环推导了闭环占空比的控制规律,验证控制规律的闭环稳定性,有效减小了线圈电流纹波及谐波,抑制铁心振动幅值,降低高频噪音;为实现多变量反馈控制策略,设计一种新型的四工作模态接触器控制拓扑,对去磁回路进行动态组合,在宽电压范围内缩短接触器吸持到分断的动作延时.相关仿真及实验验证了控制策略的有效性.
Keyword ：
临界电流 临界电流 动态组合 动态组合 多变量反馈 多变量反馈 闭环占空比 闭环占空比 高频噪音 高频噪音
Cite：
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| GB/T 7714 | 庄杰榕 , 许志红 . 电磁接触器多变量反馈吸持控制策略的研究 [J]. | 中国电机工程学报 , 2019 , 39 (5) : 1516-1525 . |
| MLA | 庄杰榕 等. "电磁接触器多变量反馈吸持控制策略的研究" . | 中国电机工程学报 39 . 5 (2019) : 1516-1525 . |
| APA | 庄杰榕 , 许志红 . 电磁接触器多变量反馈吸持控制策略的研究 . | 中国电机工程学报 , 2019 , 39 (5) , 1516-1525 . |
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Abstract ：
提出一种智能接触器准临界电流自起动控制策略.通过分析电流强迫下跌现象,推导维持电流闭环的约束条件,建立了反映触头运动状态的通用反馈信号,将下降拐点处的线圈电流定义为准临界起动电流;采用模糊观测,为不同容量的接触器首次起动提供电流初值;设计双极性数字电流闭环,基于高动态响应的电流在线搜索,不断逼近当前工况下的起动临界电流,实现吸反力良好配合的自起动过程控制.所提控制策略能够自适应获取准临界起动电流,抑制触头弹跳,对本体参数变化、电压波动不敏感,兼具卡涩故障警报、线圈过流保护等优点;相关仿真及实验验证了控制策略的有效性.
Keyword ：
下降拐点 下降拐点 准临界电流 准临界电流 数字闭环 数字闭环 模糊观测 模糊观测 自起动 自起动
Cite：
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| GB/T 7714 | 庄杰榕 , 许志红 . 智能接触器准临界电流搜索自起动控制 [J]. | 电机与控制学报 , 2019 , 23 (6) : 73-80 . |
| MLA | 庄杰榕 等. "智能接触器准临界电流搜索自起动控制" . | 电机与控制学报 23 . 6 (2019) : 73-80 . |
| APA | 庄杰榕 , 许志红 . 智能接触器准临界电流搜索自起动控制 . | 电机与控制学报 , 2019 , 23 (6) , 73-80 . |
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Abstract ：
基于线圈电流闭环控制的智能接触器受到广泛认可,为解决其抗机械扰动和差拍延时控制问题,提出一种自抗扰电流模型预测控制策略。分析线圈电流闭环的扰动机理,探讨不同线圈电压、不同的铁心分离速度对电流上升斜率的影响。分析结果表明,线圈两端电压为零时,线圈电流上升斜率的异常变化与铁心运动速度呈正向关系,由电流上升斜率能够反推铁心的运动状态。建立无差拍的电流数值求解模型,引入感应电动势补偿项,预测下一周期的线圈电流,消除数字控制延时;引入二次型评价函数进行滚动优化,求解最优占空比及开关函数,使接触器受扰动时开关函数为零,自动进入零线圈电压状态观测线圈电流斜率的异常变化,在铁心分离初期自主调节电流设定,从而抑...
Keyword ：
吸持稳定 吸持稳定 无差拍 无差拍 滚动优化 滚动优化 自抗扰 自抗扰 预测控制 预测控制
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| GB/T 7714 | 庄杰榕 , 许志红 . 智能电磁接触器自抗扰电流模型预测控制 [J]. | 电工技术学报 , 2018 , 33 (23) : 5449-5458 . |
| MLA | 庄杰榕 等. "智能电磁接触器自抗扰电流模型预测控制" . | 电工技术学报 33 . 23 (2018) : 5449-5458 . |
| APA | 庄杰榕 , 许志红 . 智能电磁接触器自抗扰电流模型预测控制 . | 电工技术学报 , 2018 , 33 (23) , 5449-5458 . |
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